ok just done head gasket change on a punto mk1 16v it went well and only hit a few bumps along the way. It is all back together now and everythink is where it should be however the car wont start.

The car is turning over no problem and seems to TRY and fire could it be that the leads and plugs are damp from being off for about a week?

Any help would be much appreciated.

Thanks alot.

Phil

i doubt its that there damp mate. youve prob either mixed up the order of the spark plugs and leads or possibly something with the fuel lines.

ive encountered sometimes tho that you need to try a few times after a headgasket change to get it going again.

clawliger said:

i doubt its that there damp mate. youve prob either mixed up the order of the spark plugs and leads or possibly something with the fuel lines.

ive encountered sometimes tho that you need to try a few times after a headgasket change to get it going again.

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i tried starting it that much that the battery gone flat, do you mean at seperate intervals?

just hope that there isnt any internal damage lol, if the timing was wrong would it turn over? if valves were bent would it turn over?

Thanks

sounds like a lack of compression, either through incorrect timing or now possibly bent valves.

try tow starting, will usually get a low on compression running.

as dave has outlined above

or have you missed the engine harness earth i think it's on the back of he head like on the 8v's

should have turned over twice to check valve timing lol

do all the lights on the dash code and engine warning go out as they should code stays for .7 second and the engine light stays for a few seconds

littlepip17 said:

do all the lights on the dash code and engine warning go out as they should code stays for .7 second and the engine light stays for a few seconds

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i was just gunna add do you prime the ignition before you turn over. lol.

if youd bent the valves you prob wouldve hear it happen. could be the timing.

when you removed the head extension which sized socket do you use and do you need the lifter retaining tool when removing the head extension and what willi need to undo the head bolts?

me53350 said:

when you removed the head extension which sized socket do you use and do you need the lifter retaining tool when removing the head extension and what willi need to undo the head bolts?

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to undo e head bolts u need a torx socket T50

littlepip17 said:

as dave has outlined above

or have you missed the engine harness earth i think it's on the back of he head like on the 8v's

should have turned over twice to check valve timing lol

do all the lights on the dash code and engine warning go out as they should code stays for .7 second and the engine light stays for a few seconds

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yep all lights go out except battery and handbrake obvioulsy, i have recharged battery and tried a different battery so isnt that, when i pump the accelerator it sounds like its trying to fire therefore timing? but how do i now get it in time there arnt any timing marks :bang:

Thanks

Phil

philmoore said:

to undo e head bolts u need a torx socket T50

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ok cheers what about thecylinder head extension? what size socket willi need?

me53350 said:

ok cheers what about thecylinder head extension? what size socket willi need?

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dont know what you mean just undo the head bolts and it should come off?

i think you mean the rocker cover and from memory (looking, not actually taking them off) i think they're either 10mm or 13mm hex heads.

dave88sw said:

i think you mean the rocker cover and from memory (looking, not actually taking them off) i think they're either 10mm or 13mm hex heads.

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thats 8v and they 10mm

me53350 said:

when you removed the head extension which sized socket do you use and do you need the lifter retaining tool when removing the head extension and what willi need to undo the head bolts?

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you can get someone to help you catch al the lifters and place the back were they came out then use another pair of hands to help hold them in one finger on each as you put it back it is posible bit fiddly thou

ie you hold 8 at one end using 4 fingers on each hand wile holding the head extension and a friend does the same at the other

the head extension is held down with ribe bits iirc these are not torques if you use anything else but ribe you will break them

the actual head is held down with bristal which is an aircraft fastening snap on may be able to help with one of those but there quite hard to come buy again if you try to undo these with anything else but bristal like someone else on here found out you will break them

so DO NOT USE TORKS AS SOMEONE HAS SAID BEFORE

https://www.fiatforum.com/punto/136943-punto-16v-head-gasket-head-problems.html?p=1436286

you will need timing rods afters to set the crank 90 degrease forward of top dead and cam lock tools

if your not gonna remove the gear at the end of the head extension you only need to use the one lock tool

philmoore

well it sounds like you have the leads mixed up

or one other posability

can you explain ow exactly you set the timing

as they can be very sensative to this being out even the slightest bit

did you use 2 rods in cyl one and two to make sure the crank was 90 degrease forward of top dead and did you use cam locking tools then loosen the vernier fit the belt and tighten the vernier again then turn over twice and re check

littlepip17 said:

philmoore

well it sounds like you have the leads mixed up

or one other posability

can you explain ow exactly you set the timing

as they can be very sensative to this being out even the slightest bit

did you use 2 rods in cyl one and two to make sure the crank was 90 degrease forward of top dead and did you use cam locking tools then loosen the vernier fit the belt and tighten the vernier again then turn over twice and re check

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unfortunately i didnt use the timing tool because i wanted to do it on the cheap >< my fault as i am regreting not putting my hand in my pocket.

I used tipex to mark up where the cams and the crank were so that they didnt actually move, i then fitted the belt and tensioned it.

if i lock the cams does this make it align with TDC of the pistons because the manual says you can fashion your own tools, i have two rods that are exactly the same length couldnt i drop them down into 1, 2 then turn the crank and wait for it the arc therefore finding TDC? Then all that would be to do is lock the cams in there correct position?

thanks

phil

ok i have re done the timing on the car, i placed two rods of exact same length down onto the piston spk plug 1 and 2 i then made sure that they were both level and not higher than each other placed the rods in all four pots to check that they are all level i then turned the cam shaft so that the cam locking bit was visible and in align with the hole on the side.(followed all steps that are in the manual)

Therefore the timing must be correct i then fitted the belt and tensioned ensuring that the tensioner was in line with with the marks on it, i then turned the engine over twice everything sounded fine then re checked the timing and all was the same if the valves were already bent from not timing properly the first time would this stop the car from starting?

If i put my hand over the throttle body it doesnt seem to suck when the engine is turning over it seems to blow however it does suck a tiny bit.

Any more help with this would be great



Thanks alot

Phil

dave said:

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this is in the correct position

thanks